David R. Roylance, Principal

David has more than 25 years in the energy industry with a proven track record of delivering innovative solutions for competitive electricity and natural gas consumers across the North American and European restructured markets. Most recently, David co-founded Prism Energy Solutions, an energy consultancy for commercial natural gas and electricity consumers.  Prior to forming his own company, David was Senior Vice President for Reliant Energy, where since 2001 he led the commercial and industrial sales and marketing division before joining SaveOnEnergy in 2009.  While in his position at Reliant, he drove the profitable expansion of the company’s retail business, establishing Reliant as the second largest competitive retailer for businesses in the United States.  Mr. Roylance also served in several other capacities with Reliant, including Director of Natural Gas Trading and Marketing in the western United States.  Mr. Roylance also helped establish Reliant’s European sales and marketing presence during the opening of the competitive European markets. Prior to joining Reliant in 1998, David rose through positions of increasing responsibility at Conoco Philips’ domestic and international units, starting as an analyst and, ultimately served as a Director of Natural Gas Trading and Marketing.   David is also very involved in working to establish consumer friendly rules and business practices for Aggregators, Consultants and Brokers.  He is currently Chairman of the Standards and Compliance Committee for The Texas Energy Professionals Association, and Chairman of the Board for a non-profit focused on issues negatively affecting Children.   David holds a BBA from University of North Texas..

Kelly Vannucci, Principal

Kelly is co-Founder and Principal of Prism Energy Solutions. She has over ten years of competitive energy industry experience working with commercial and industrial clients.  From 2001-2009, Kelly served as a Senior Sales Consultant for Reliant Energy. She has worked with customers across various industries segments, aiding in the procurement process for electricity and natural gas. She is knowledgeable across all products and provides outstanding customer service on behalf of her clients. While at Reliant, Kelly consistently exceeded performance goals for her commercial ability and customer service for existing and new customers. Prior to her work at Reliant, Kelly served as a senior sales representative for an organization that leased and sold modular office buildings to large industrial facilities throughout the southeast portion of the U.S.  Kelly worked directly with top level customer personnel from the beginning of the sales process to the completion of the project. She holds a Bachelor of Business Administration from Texas A&M University.

Shannon McGriff, C.E.P., Senior Energy Advisor

As an Energy Advisor for Prism Energy Solutions, Shannon McGriff provides Commercial & Industrial consumers with market insight and helps them formulate effective procurement strategies. She also manages the sales cycle for Prism’s network of referring consultants and advisors, and coordinates service contracts such as demand response, lighting retrofits and power factor correction.

Prior to joining Prism Energy Solutions in 2015, Shannon held positions at Unified Energy with initiatives in supporting client relationships, and developing new sales opportunities through referral networks, conferences and industry events. Shannon also previously served as the Director of Operations at Choice Energy Services. During her career she has developed a dynamic portfolio of consulting experience in multifamily, commercial real estate and retail, among other sectors in the competitive markets.

Shannon currently serves as the National Conference Chair for The Energy Professionals Association. Since 2011 she has planned and managed bi-monthly TEPA meetings, as well the organization’s national conference, which hosts over 400 energy professionals from across the country. Shannon earned her BS from Texas A&M University in College Station, Texas